Methyl 2-((2R,4As,6S,7R,8S,8As)-7,8-Bis((Tert-Butyldimethylsilyl)Oxy)-6-((S,E)-1-((Tert-Butyldimethylsilyl)Oxy)-3-Iodoallyl)Octahydropyrano[3,2-B]Pyran-2-Yl)Acetate

The chemical structure of this product has the following characteristics:
First, the structure is delicate and orderly. Looking at its structure, it is like a chess game cleverly set up by heaven. The atoms and groups are arranged according to specific laws, restricting each other and cooperating with each other. Just like the ancient art of war, it is rigorous and meticulous. This orderly state gives the product stable performance, such as sitting firmly in the command of the army, changing without chaos, and can maintain its inherent characteristics in many environments. It is not easily disturbed by the outside world and causes the structure to collapse.
Second, it has a unique spatial configuration. The spatial extension of the molecule is by no means random, or it is symmetrical, like an ancient bronze mirror, smooth and symmetrical, showing harmony; or it has specific twists and folds, like a carefully carved jade, with hidden mysteries in the twists and turns. This unique configuration not only affects the interaction between the product and other substances, but also concerns its function. For example, some active check points can precisely connect with the target molecule due to the delicate arrangement of the spatial position, just like the fit of a key and a lock, efficient and specific.
Third, the characteristics of chemical bonds are significant. All kinds of chemical bonds play their respective roles in the structure. Covalent bonds are as tough as steel cables, tightly connecting atoms to ensure the stability of the basic skeleton of the structure; while weak interactions such as hydrogen bonds are as delicate as silk threads to maintain the relationship between molecules, although the force is small but indispensable. They maintain overall stability in dynamic equilibrium, just like the joint efforts of kings and ministers in the court to ensure the stability of the country. And the parameters of chemical bonds, such as bond energy and bond length, are naturally screened to be just right, laying a solid foundation for the chemical properties of the product, so that it can show specific activity and selectivity in the reaction, or lively like a young hero, brave enough to participate in various chemical reactions; or calm like an old man, sticking to its own essence in a complex environment.

The main purpose of a product is related to its value and function. According to the "Tiangong Kaiwu", all things have their own uses and are suitable for each.
Taking Nongsang as an example, silk weaving has a wide range of main uses. Silk can be woven into exquisite satin, which can be used as a material for clothing. In ancient times, dignitaries and dignitaries wore silk and silk to show their status. Its texture is soft and smooth, and the colors are gorgeous. It is cut into various kinds of luxurious clothes, or it is a royal dress, which is solemn and dignified, used for the Ming level above the court; or it is a regular dress, elegant and comfortable, suitable for daily social interaction. Second, satin can also be used for decoration. In the mansions of wealthy families, satin is used to decorate the screens and curtains, adding to the luxurious atmosphere of the mansion and creating an elegant atmosphere.
Another example is ceramic products. The use of ceramics is mainly in eating utensils. Bowls, plates, cups, etc., are necessary for daily diet. Its texture is clean, easy to clean, and can withstand high temperatures. It is used to hold food and protect the original taste of food. In addition, ceramics also have ornamental value. Exquisite porcelain bottles and porcelain carvings, beautifully shaped and delicate patterns, are either placed in the hall or displayed in the study for people to enjoy and add elegance to the residence.
Looking at metal products, iron farming tools are the key to farming. Plows, hoes and other farming tools help farmers to cultivate land, cultivate crops, and improve farming efficiency. They are related to the harvest of food and maintain the livelihood of the people. Bronze ware, in ritual and ceremonial occasions, is often used as tripods, honors and other ceremonial vessels, carrying the ancient people's reverence for the gods and ancestors of heaven and earth, and demonstrating a solemn and solemn sense of ritual.
In short, the main uses of the products are related to people's daily use, ceremonial culture, or ornamental value, all of which meet the needs of the world at different levels and promote the development and progress of society.

The method of combining materials is related to craftsmanship and delicacy, and it also depends on the appropriate use of materials and the order of the process.
If you want to make a thing, the first thing is to choose the materials. The quality of the material is related to the quality of the product. For example, when smelting swords, when seeking fine iron, its quality is strong and tough, it can become a sharp tool for cutting iron like mud. If the material selection is not appropriate, even if the craftsmanship is excellent, it is difficult to become a good product. Therefore, when selecting materials, you must carefully observe their properties and choose them according to the use of the product. This is the foundation of the system.
The second process is the process. The system is orderly and orderly. Such as building a house, first establish the foundation, then erect the beams with columns, and then cover the tiles to build the wall If it is upside down and confused, the house will not be solid. Every process has its own needs and cannot be ignored. Craftsmen need to follow the ancient method, and they must also keep pace with the times and improve their skills. In carving jade, those who carry a knife and move their wrists, and their priorities are all exquisite. According to the texture of the stone, meticulous carving can become a beautiful masterpiece.
Furthermore, in the method of joint production, the ingenuity of the craftsman is also indispensable. A wise man can see wonders in ordinary places, and use unique methods to turn the ordinary into magic. Such as Luban making saws, looking at the toothed grass and getting inspiration, creating this sharp tool greatly facilitates woodworking. Craftsmen should have this kind of wisdom, not be bound by the old law, and be brave in innovation, so as to make the product unique.
Co-operation is also the importance of co-production. All people gather firewood and the flame is high, and those who make great tools often need the joint efforts of all craftsmen. For example, building a building ship requires carpentry, ironwork, painters, etc. to perform their duties and cooperate closely to achieve this gigantic system. If each has selfishness and does not conspire with each other, it will be difficult to achieve.
In general, the method of combining things is based on the selection of materials, the process is the bone, ingenuity is the soul, and collaboration is supplemented. Only when you have both of the four can you make an excellent thing, which will be passed down to future generations and be a model for a hundred workers.

The stability of a man's artifacts is related to the materials used, the method of fabrication, and the regulations of the school examination.
The man's material is the foundation of the artifacts. Those who are good at making artifacts in ancient times must choose materials carefully. Good materials are solid and durable. If the wood is dense in texture and tough in texture, the stone should be stable in lithology, corrosion and wear resistance, and the metal should be pure and malleable. For example, when making a sword with good craftsmanship, choose iron to be fine, and temper it with quenching and grinding, so that the blade can be strong and will not be broken for a long time. This so-called good material makes the artifact stable.
As for the method of fabrication, it is also the key. Ancient production methods, the process is complicated, but they are all orderly. Pottery maker, kneading mud, shaping, roasting, step by step carefully. If the mud is uneven, the body will be easy to crack; if the shaping is irregular, the utensils will be difficult to make. When roasting, it is very important to control the heat. If it is too high, the pottery will be brittle, and if it is not as good, the pottery will be soft. Another example is woodworking in a house. The tenon and mortise are connected, and the fit must be precise. The length and thickness must be investigated in every detail, so that the roof beam can be stable and the wind and rain will not invade. This is all because of the way it is made, and the utensils are safe.
Furthermore, the rules of the school entrance examination cannot be abolished. After the tool is finished, it must be inspected in detail. Test whether its size is suitable, check whether its appearance Such as the ancient casting bell, you must hit it after casting, listen to its timbre, distinguish its sound quality, and the sound is clear and far away. After this examination, the utensils can be removed from the rough and refined to ensure stability.
Today's utensils, although the method of production is different from that of the ancient times, seek stability. The selection of materials should be in line with the times, and new and high-quality materials should be used. Advanced craftsmanship should be used to improve accuracy and efficiency; school entrance examination should set complete standards and be strictly implemented. In this way, the stability of the product can be expected, it can be used by the world, and it will be passed down for a long time.

The competitiveness of the husband's products in the market is related to the rise and fall of survival, and sincerity is the most important thing. To understand its shape, you should observe the number of ends.
First look at quality. Quality is the foundation of the product. If "Tiangong Kaiwu" said "a total of reef finishing, not only the kettle but also the chalk ash, all of which are made by means of it", the success of utensils depends on the work of craftsmen finishing, which is the way of quality. Excellent quality, such as finely crafted jade, flawless and strong in quality, can win the favor of customers and stand out in the city. The inferior is like rotten wood, although decorated with splendor, it will not last for a long time.
The second discussion of utility. The product should meet the needs of people and have practical power. " The book "Tiangong Kaiwu" has a saying: "It is made of one iron, and its identity is the handle and the spoon, and each carries two iron weights than the back." The design of the spoon is coordinated with the handle and spoon, so as to be suitable for people to handle and retrieve things. If the product can accurately meet the needs and meet the expectations of the public, its competitiveness will be self-strengthening. On the contrary, if the function is not achieved, even if there is ingenuity, it will be difficult to win the hearts of the people.
Furthermore, it depends on the price. The price is also the trade-off of the city. If the price is reasonable, it will not only take into account the interests of the business, but also meet the wishes of the customers. For example, "Where rice is shelled, it is used to remove the film, and it is used to grind it. However, the water is the main one The price is cheap and the quality is good, and the buyers must be many, and the competitiveness is born from this. If the price is ridiculously high, even if it is of good quality and good use, it will also deter customers.
Review the publicity. Although there is good jade, it is difficult to show it if it is not clear. Those who are good at publicizing, such as raising the flag in the city, attract attention. "Tiangong Kaiwu" records all kinds of craftsmanship utensils, which are also spread. Products are widely known by publicizing, so that the public can know their advantages and strengths, so as to increase their influence in the city, and then strengthen their competitiveness.
And brand. Accumulate reputation for a long time and become its brand. Like the name of an old store, everyone believes it. The brand has a word-of-mouth, and people take it as a sign of high quality and good Therefore, accumulating the reputation of the brand is the important way to increase competitiveness.
In summary, the competitiveness of products in the market requires fine quality, suitable function, appropriate price, good publicity and a strong brand. Only by having both of the five can we be vertical and horizontal in the city. If one is missing, it may be difficult to compete.